HomeMy WebLinkAbout205 - 12/16/1986 - AMENDING CITY CODE RELATING TO RESIDENTIAL FIRE SPRINKLER SYSTEMS ORDINANCE NO. 205 , 1986
OF THE COUNCIL OF THE CITY OF FORT COLLINS
AMENDING CHAPTERS 38 AND 50 OF THE CODE
OF THE CITY OF FORT COLLINS RELATING TO RESIDENTIAL
FIRE SPRINKLER SYSTEMS
BE IT ORDAINED BY THE COUNCIL OF THE CITY OF FORT COLLINS that
Chapters 38 and 50 of the Code of the City of Fort Collins be amended as
follows:
Section 1. That Section 50-2 be amended to set out the following
additional amendments to the provisions of the Uniform Fire Code, in
numerical sequence with previous amendments:
(1) Appendix III-D is added as follows:
APPENDIX III-D
RESIDENTIAL FIRE SPRINKLERS - ALTERNATIVE DESIGN CRITERIA
SECTION 1.0 PURPOSE, SCOPE, AND LIMITATIONS
1. 1 PURPOSE
This Appendix describes the design alternatives for fire access,
fire fighting water supplies, and fire alarm systems which may be
used in new residential buildings and projects when buildings
and/or projects are protected by approved residential fire
sprinkler systems.
1.2 SCOPE
Residential fire sprinkler systems may be used in any Group R
Occupancy as defined by the Uniform Building Code which is not
otherwise required to be protected by a commercial fire sprinkler
system. Examples of these buildings are single-family dwellings,
duplexes, lodging houses, apartment buildings, condominiums,
townhouses, zero lot-line homes, dormitories, fraternity and
sorority houses, group homes, hotels and motels. This Appendix
shall not apply to buildings of four or more stories or exceeding
55' in height or buildings defined as Group I Occupancy by the
Uniform Building Code.
1.3 LIMITATIONS
Residential fire sprinkler systems, in conjunction with other
requirements of the Uniform Fire and Uniform Building Codes and
their Appendices and related standards, are intended to control a
fire and maintain a tenantable environment within a residence.
Residential fire sprinklers are not intended as a substitute for
manual firefighting forces, but when used in conjunction with
current Poudre Fire Authority service levels they can substantially
increase the probability of survival in a fire and decrease the
potential for property loss and endangering neighbors. This
Appendix permits the omission of sprinkler coverage in those areas
of a building where life-threatening fires are unlikely to
originate.
1.4 EXTENT OF PROJECT COVERAGE
All buildings within a residential project or residential portions
of a mixed commercial -residential project, as defined by City
planning criteria, using the alternative design criteria of this
Appendix and Chapter 13 of the Uniform Building Code shall be
equipped with approved residential or commercial fire sprinkler
systems. Non-residential portions of residential buildings and
non-residential buildings directly serving the primary residential
use, as detailed in this section, shall be equipped with
residential fire sprinkler systems:
1.4.1 ASSEMBLY AREAS
Assembly areas or rooms, such as dining rooms, club rooms,
clubhouses, conference rooms, classrooms, chapels, lounges, and
similar areas, when the occupant load is less than fifty (50) and
the fire loading is comparable to the light hazard classification
for the design of commercial fire sprinkler systems.
1.4.2 OFFICE AND RETAIL SPACE
Office and retail rooms or areas when the occupant load is less
than ten (10) and the fire loading is comparable to the light
hazard classification for the design of commercial fire sprinkler
systems.
1.4.3 STORAGE BUILDINGS AND AREAS
Storage buildings and areas which are used for only the storage of
household goods and personal belongings and garages for passenger
vehicles of residents. Vehicle garages, when attached to dwelling
units, shall be divided in sections large enough to accommodate no
more than two (2) passenger vehicles with a minimum one-hour
fire-resistive construction.
EXCEPTION: Storage sheds and vehicle garages, as defined in
Sections 2. 11 and 2. 13.
1.4.4 NON-RESIDENTIAL PORTIONS OF BUILDINGS
Other non-residential portions of buildings, such as kitchens,
maintenance rooms, child care rooms, and similar areas, when the
use is directly related to the primary residential use and when the
fire-loading is comparable to the light hazard classification of
commercial fire sprinkler systems.
1.4.5 DETACHED AGRICULTURAL BUILDINGS
Sprinkler coverage may be omitted in detached agricultural
buildings or buildings defined as Group M Occupancies by the
Uniform Building Code, such as barns, stables, and similar
buildings when they are directly related to the residential use and
they do not constitute a fire exposure hazard to dwellings.
1.5 MIXED RESIDENTIAL-COMMERCIAL PROJECTS
Commercial buildings, portions of residential buildings not
directly related to the residential use, or those buildings or uses
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outside the parameters outlined in Section 1.4 which utilize the
alternative design criteria of Appendix III-D shall be protected by
approved commercial fire sprinkler systems. In buildings of mixed
use, commercial and residential fire sprinkler systems may be
combined to achieve total building protection.
1.6 EXTENDED MODIFICATIONS
The design criteria detailed in this Appendix may be extended,
relaxed, modified, or waived when all buildings are protected with
fully conforming commercial fire sprinkler systems and when, in the
opinion of the Chief, firefighting and/or rescue operations would
not be impaired.
1.7 REFERENCE TO OTHER SECTIONS OF THE FIRE CODE
Unless specifically modified in this Appendix, all requirements of
the Uniform Fire Code, as adopted and amended, and related
standards and policies shall apply.
SECTION 2.0 DEFINITIONS
2.1 BUILDING CODE
The edition of the Uniform Building Code, or other building code,
adopted and amended by the City.
2.2 CITY
The City of Fort Collins, Colorado, a municipal corporation.
2.3 COMMERCIAL FIRE SPRINKLER SYSTEM
An automatic fire extinguishing system consisting of a water
supply, a system of piping, and sprinkler heads designed,
installed, and maintained in accordance with National Fire
Protection Association Standard 13, Uniform Building Code Standard
38-1, and Fire Code Sections 10.301 and 10.302.
2.4 DEAD-END FIRE APPARATUS ACCESS ROAD
A fire apparatus access road that does not provide a direct
connection to a public street or approved private drive, except at
its point of origin.
2.5 FIRE APPARATUS ACCESS ROAD
Any public street or private drive required to be used as a point
of access for firefighting or other emergency purposes.
2.6 FIRE CODE
The edition of the Uniform Fire Code or other fire code adopted and
amended by the City.
2.7 PRIVATE DRIVE
A street, alley, parking lot, or other thoroughfare owned and
maintained by a private party , homeowners ' association ,
neighborhood group, or other similar party.
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2.8 PUBLIC STREET
A dedicated public street, alley, or other thoroughfare regulated
and maintained by the city, county or state.
2.9 RESIDENTIAL FIRE SPRINKLER SYSTEM
An automatic fire extinguishing system consisting of a water
supply, a system of piping and sprinkler heads designed, installed,
and maintained in accordance with Appendix III-E of this Code.
2.10 REQUIRED FIRE FLOW
The quantity of water needed to control a fire in a specific
building and prevent its spread to adjoining properties under
normal anticipated conditions. "Required Fire Flow" shall be
designated in gallons per minute (GPM) at specific residual
pressures.
2.11 STORAGE SHEDS
Buildings used for storage of household goods and personal effects
of residents. Storage sheds shall not exceed 120 square feet in
area nor seven feet (7' ) in height and shall not be used for the
storage of flammable liquids or hazardous materials.
EXCEPTION: Quantities of flammable liquids and hazardous materials
used in the maintenance and operation of the residence
or residential project not exceeding ten (10) gallons.
2.12 TRAFFIC ENGINEER
The person lawfully empowered to regulate vehicular traffic on
public or private property.
2. 13 VEHICLE GARAGES
Detached external buildings used for the storage of vehicles owned
by residents. Vehicle garages shall be limited in size to that
necessary for the storage of only two vehicles and shall not be
used for repair work or storage of flammable liquids or hazardous
materials except as allowed in Section 2. 11 .
EXCEPTION: Larger vehicle garages shall be permitted, provided
each set of two parking stalls is separated by one-hour
fire resistive construction, as described in the
Building Code.
2.14 WATER SUPPLY
The provision of water for firefighting purposes. Water supply
shall be public or private water distribution systems or approved
stored water sources.
SECTION 3.0 FIRE APPARATUS ACCESS ROADS
3.1 GENERAL
For buildings or projects provided with approved residential fire
sprinkler systems, fire apparatus access roads shall be provided
and maintained in accordance with the provisions of this section.
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Design and maintenance criteria for all other fire apparatus access
roads shall be in accordance with Section 10.207 of the Fire Code
and applicable Poudre Fire Authority standards and policies.
3.2 WHERE REQUIRED
Fire apparatus access roads shall be required for every building
hereafter constructed when any portion of an exterior wall of the
first story is located more than three hundred feet (300') from
fire department vehicle access. Measurement of the 300' distance
shall be as a hoseline would be advanced around the exterior of the
building and shall not pass through the building.
3.3 CONSTRUCTION AND SURFACE REQUIREMENTS
Fire apparatus access roads shall be designed and maintained to
support the imposed loads of fire apparatus and shall have a
surface which provides all -weather driving capabilities. City
design standards shall apply when designing and installing fire
apparatus access roads.
3.4 WIDTH
The minimum unobstructed width of a fire apparatus access road
shall be not less than twenty (20) feet. Total public street or
private drive width shall be in accordance with applicable City
standards, or as determined by City traffic engineer.
EXCEPTION: Fire apparatus access road width for private drives
serving detached single-family dwellings and Group M
occupancies, as defined by the Building Code, may be
reduced to fifteen (15) feet.
3.5 VERTICAL CLEARANCE
All fire apparatus access roads shall have an unobstructed vertical
clearance of not less than thirteen feet, six inches (13'6") .
3.6 TURNING RADIUS
The turning radius of fire apparatus access roads shall be a
minimum of twenty feet (20' ) inside and forty feet (40' ) outside
and all turns shall maintain the unobstructed width requirement set
forth in Section 3.4 above.
3.7 DEAD-END FIRE APPARATUS ACCESS ROADS
All dead-end fire apparatus access roads exceeding one hundred and
fifty feet (150' ) in length shall be provided with a turnaround
sufficient to allow a standard fire pumper to back up and reverse
direction. Dead-end fire apparatus access roads exceeding three
hundred feet (300') in length shall be provided with an eighty foot
(80' ) diameter cul -de-sac, drive-around access through a parking
lot with conforming turning radius, or an approved second point of
access.
EXCEPTION: Private drives serving individual detached
single-family dwellings may be of unlimited length,
without turnaround provisions.
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3.8 BRIDGES
Bridges used as part of fire apparatus access roadways shall be
designed, constructed, and maintained in a manner sufficient to
carry the imposed loads of fully-loaded fire apparatus. When
bridges are used, applicable City design standards shall be used.
3.9 GRADE
The gradient for fire apparatus access roads shall not exceed eight
percent (8%) .
EXCEPTION: Private drives serving individual detached
single-family dwellings may exceed an 8% grade when, in
the opinion of the Chief, firefighting or rescue
operations would not be impaired.
3.10 OBSTRUCTION
The required width of any fire apparatus access roadway shall not
be obstructed in any manner, including parking of vehicles. When
parking obstructions are anticipated, approved "NO PARKING - FIRE
LANE" signs shall be posted. When required, these signs shall be
placed on one side of roadways twenty-eight feet (28') or less in
width and on both sides of roadways twenty-four feet (24' ) or less
in width.
3.11 SECOND POINT OF ACCESS
All dead-end fire apparatus access roads serving 150 dwelling units
or fewer or a dwelling unit density of 15 dwelling units per acre
or fewer shall be provided with an approved second point of access
when the dead-end fire apparatus access road exceeds 1,320' in
length. Dead-end fire apparatus access roads serving over 150
dwelling units or a dwelling unit density of more than 15 shall be
provided with an approved second point of access when the dead-end
fire apparatus road exceeds 660' in length.
EXCEPTION: Extensions of dead-end fire apparatus access roads
serving detached single-family dwellings may be allowed
when geographical conditions make a second point of
access impossible, and when, in the opinion of the
Chief, firefighting or rescue operations would not
otherwise be impaired and adjoining dwellings and other
buildings do not present a fire exposure hazard to each
other.
SECTION 4.0 WATER SUPPLY
4.1 GENERAL
An approved water supply capable of providing the required fire
flow for fire protection shall be provided to all premises upon
which buildings or portions of building are hereafter constructed.
Residential fire sprinkler systems shall not be considered as a
substitute for approved water supplies, except as modified in this
section.
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4.2 REQUIRED FIRE FLOW
The required fire flow shall be determined using applicable Poudre
Fire Authority water supply standards. All water distribution
systems shall be installed in accordance with applicable City and
water district standards.
4.3 WATER SUPPLY REQUIREMENTS
Water supply requirements within the City shall be in accordance
with applicable City standards. In areas of the City served by a
water district, the water distribution system shall be installed in
accordance with the standards of that district.
EXCEPTION: In areas where a water distribution system is fully
developed and incapable of providing the required
fireflow but capable of providing the calculated
sprinkler demand, an approved residential fire
sprinkler system may be considered as satisfying the
intent of this Code. In areas where exposure to fire
hazards exist, the Chief may require additional fire
hydrants.
4.4 FIRE HYDRANT SPACING
The distance from a primary fire hydrant to the most distant point
of a fire apparatus access road required for fire access shall not
exceed six hundred feet (600') . When secondary fire hydrants are
required, the distance from the most distant point of a fire
apparatus access road required for fire access shall not exceed one
thousand feet (1000') .
EXCEPTION: In rural areas where standard fire hydrant spacing is
impractical due to the size of individual lots, the
Chief may allow extension of hydrant spacing distances.
SECTION 5.0 FIRE ALARM SYSTEMS
5.1 GENERAL
Fire alarm systems shall be installed in residential buildings as
detailed in this section.
5.2 DEFINITIONS
For the purpose of this section, the following words/phrases shall
have the meanings indicated:
5.2.1 MULTI-FAMILY DWELLINGS
Multi -family dwellings three (3) stories or more in height or
containing fifteen (15) or more dwelling units and with interior
corridors serving as the primary exit for dwelling units.
5.2.2 HOTELS, MOTELS, AND DORMITORIES
Hotels, motels, and dormitories three (3) stories in height or
containing twenty (20) or more guest rooms, and with interior
corridors serving as the primary exit for guest rooms.
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5.2.3 GROUP HOMES
Group living facilities such as board and care homes for the
elderly, group homes for mentally, physically, and/or emotionally
disabled persons, lodging houses, fraternity and sorority houses,
half-way houses, and similar group living facilities.
5.3 EXTENT OF COVERAGE
Alarm systems installed in multi -family dwellings, hotels, motels,
and dormitories shall include smoke detection and manual activation
in corridors, intervening rooms, and other common areas. The
evacuation alarm shall also be connected to the sprinkler flow
switch. Group homes shall be provided with approved, 110-volt
powered, single-station smoke detection in all living areas. Such
equipment shall be installed in accordance with the manufacturer's
instructions. An evacuation alarm shall be provided and connected
to the sprinkler flow switch.
5.4 DWELLING UNIT SMOKE DETECTORS
Nothing in this Appendix shall preempt the smoke detector
requirement of Section 121O(A) of the Building Code. Individual
smoke detectors shall be installed in all dwelling units in
accordance with the Building Code.
(2) Appendix III-E is added as follows:
APPENDIX III-E
RESIDENTIAL FIRE SPRINKLER SYSTEMS -
DESIGN, INSTALLATION, AND MAINTENANCE STANDARDS
SECTION 1.0 PURPOSE, SCOPE, AND LIMITATIONS
1.1 PURPOSE
This Appendix describes an automatic fire sprinkler system which
will contribute to the reduction of loss of life and injuries due
to fire in residential occupancies.
1.2 SCOPE
This Appendix describes the requirements for the design,
installation, and maintenance of residential fire sprinkler
systems. These systems may be installed in any Group R Occupancy
as defined by the Uniform Building Code which is not otherwise
required to be protected by a commercial fire sprinkler system.
Examples of these buildings are single-family dwellings, duplexes,
lodging houses, apartment buildings, condominiums, townhouses, zero
lot-line homes, dormitories, fraternity and sorority houses, group
homes, hotels, and motels. This Appendix shall not apply to
buildings of four or more stories or exceeding 55' in height or
buildings defined as Group I Occupancy by the Uniform Building
Code.
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1.3 LIMITATIONS
Residential fire sprinkler systems, in conjunction with other
requirements of the Uniform Fire and Uniform Building Codes and
their Appendices and related standards, are intended to control a
fire and maintain a tenantable environment within a residence.
Residential fire sprinklers are not intended as a substitute for
manual firefighting forces, but when used in conjunction with
current Poudre Fire Authority service levels they can substantially
increase the probability of survival in a fire and decrease the
potential for property loss and endangering neighbors. This
Appendix permits the omission of sprinkler heads in those areas of
a building where life-threatening fires are unlikely to originate.
1.4 EXTENT OF PROJECT COVERAGE
All buildings within a residential project or residential portions
of a mixed commercial -residential project, as defined by City
planning criteria, using the alternative design standards of
Appendix III-D and Chapter 13 of the Uniform Building Code shall be
equipped with approved residential or commercial fire sprinkler
systems. Non-residential portions of residential buildings and
non-residential buildings directly serving the primary residential
use, as detailed in this section, shall be equipped with
residential fire sprinkler systems:
1.4. 1 ASSEMBLY AREAS
Assembly areas or rooms, such as dining rooms, club rooms,
clubhouses, conference rooms, classrooms, chapels, lounges, and
similar areas, when the occupant load is less than fifty (50) and
the fire loading is comparable to the light hazard classification
for the design of commercial fire sprinkler systems.
1.4.2 OFFICE AND RETAIL SPACE
Office and retail rooms or areas when the occupant load is less
than ten (10) and the fire loading is comparable to the light
hazard classification for the design of commercial fire sprinkler
systems.
1.4.3 STORAGE BUILDINGS AND AREAS
Storage buildings and areas which are used for only the storage of
household goods and personal belongings and garages for passenger
vehicles of residents. Vehicle garages, when attached to dwelling
units, shall be divided in sections large enough to accommodate no
more than two (2) passenger vehicles with a minimum one-hour
fire-resistive construction.
EXCEPTION: Storage sheds and vehicle garages, as defined in
Sections 2. 11 and 2. 13 of Appendix III-D.
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1.4.4 NON-RESIDENTIAL PORTIONS OF BUILDINGS
Other non-residential portions of buildings, such as kitchens,
maintenance rooms, child care rooms, and similar areas, when the
use is directly related to the primary residential use and when the
fire-loading is comparable to the light hazard classification of
commercial fire sprinkler systems.
1.4.5 DETACHED AGRICULTURAL BUILDINGS
Sprinkler coverage may be omitted in detached agricultural
buildings or buildings defined as Group M Occupancies by the
Uniform Building Code such as barns, stables, and similar buildings
when they are directly related to the residential use and they do
not constitute a fire exposure hazard to dwellings.
1.5 MIXED RESIDENTIAL-COMMERCIAL PROJECTS
Commercial buildings, portions of residential buildings not
directly related to the residential use or those building or uses
outside the parameters outlined in Section 1 .4 which utilize the
alternative design criteria of this Appendix shall be protected by
approved commercial fire sprinkler systems. In buildings of mixed
use, commercial and residential fire sprinkler systems may be
combined to achieve total building protection.
1.6 DOCUMENTATION
All buildings required to be equipped with residential fire
sprinkler systems shall have this requirement included in the
documents provided by the developer to the property owner. No
certificate of occupancy shall be issued for any building required
to have a fire sprinkler system until that system has been approved
by the Chief.
SECTION 2.0 DEFINITIONS
2. 1 BACKFLOW PREVENTION DEVICE
A checkvalve, series of checkvalves, or other approved device
intended to prevent water in sprinkler system piping from entering
the public water distribution system.
2.2 CIRCULATING SYSTEM
A sprinkler system where the water contained in the system piping
is periodically circulated through a connection to a regularly-used
and approved plumbing fixture at its most distant point.
2.3 CITY
The City of Fort Collins, Colorado, a municipal corporation.
2.4 COMBINATION WATER SERVICE LINE
A water service line used jointly for domestic and fire sprinkler
use.
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2.5 COMMERCIAL FIRE SPRINKLER SYSTEM
An automatic fire extinguishing system consisting of a water
supply, a system of piping and sprinkler heads designed, installed,
and maintained in accordance with National Fire Protection
Association Standard 13, Uniform Building Code Standard 38-1, and
Uniform Fire Code Section 10.301 and 10.302.
2.6 COMMERCIAL SPRINKLER HEAD
A fire sprinkler head designed for use with commercial fire
sprinkler systems.
2.7 DEDICATED FIRE SPRINKLER LINE
A water service line used only for supplying a fire sprinkler
system.
2.8 ESCUTCHEONS
Decorative pipe fixtures used to cover piping to sprinkler heads
extended below ceilings or through walls.
2.9 FIRE DEPARTMENT CONNECTION
A connection on the exterior of a building provided for use by
firefighters to augment water quantity and pressure within a fire
sprinkler system.
2.10 RESIDENTIAL FIRE SPRINKLER SYSTEM INSTALLATION CERTIFICATE
A certificate issued by Poudre Fire Authority authorizing an
installer to design, install , and maintain residential fire
sprinkler systems.
2. 11 RESIDENTIAL FIRE SPRINKLER SYSTEM
An automatic fire extinguishing system consisting of a water
supply, a system of piping and sprinkler heads designed, installed,
and maintained in accordance with this Appendix.
2.12 RESIDENTIAL SPRINKLER HEAD
A fire sprinkler head designed for use with residential fire
sprinkler systems.
SECTION 3.0 MATERIALS
3.1 GENERAL
All materials used in residential fire sprinkler systems shall be
listed and approved by Underwriters Laboratory (UL) or Factory
Mutual (FM) for the use intended.
EXCEPTION: Listing may be waived for tanks, pumps, hangers,
water-flow detection devices, water-flow valves,
checkvalves, and gauges when those devices are approved
for use by the City.
3.2 PIPE AND PIPE FITTINGS
Pipe and pipe fittings shall be of materials listed in Table 3. 1 . 1 .
of this Appendix. Joints in all pipe and pipe fittings shall
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conform to the methods listed in the American Society for Testing
and Materials (ASTM) or the American National Standards Institute
(ANSI) Standard listed in Table 3. 1 . 1 of this Appendix. All pipe
and pipe fittings shall be designed to withstand a constant working
pressure of 175 pounds per square inch (PSI) .
3.3 SPRINKLER HEADS
Sprinkler heads shall be of the fast-response type listed and
approved for residential use in conformance with UL Standard 1626.
All sprinkler heads shall have a fusing temperature of not less
than 35°F above the maximum expected ambient temperature, but in no
case shall the fusing temperature be over 1650F.
EXCEPTION: Commercial sprinkler heads installed in hazard areas,
as required in Section 4.3. 1. , shall have a fusing
temperature between 1650F and 2120F.
3.3.1 SPRINKLER HEAD FINISHES
Sprinkler heads may be painted or have an ornamental finish if
paint or finish is applied by the manufacturer. No other head
painting or finishes shall be permitted.
3.4 ALARM EQUIPMENT
All alarm and electrical components used as part of sprinkler
systems shall be UL and/or FM listed and installed in accordance
with the electrical code enforced by the City.
TABLE 3.1.1
MATERIAL d DIMENSIONS STANDARD
Cast Iron
Cast Iron Threaded Fittings, Class 125 & 250 ANSI B16.4
Cast Iron Flanges & Flanged Fittings ANSI B16.1
Malleable Iron
Malleable Iron Threaded Fittings, Class 150 & 300 ANSI B16.3
Steel
Factory-made Wrought Steel Buttweld Fittings ANSI B16.9
Buttwelding Ends for Pipe, Valves, Flanges & Fittings ANSI B16.25
Specifications for Piping Fittings of Wrought Carbon
Steel & Alloy Steel for Moderate & Elevated
Temperatures ANSI A234
Pipe Flanges & Flanged Fittings, Steel Nickel Alloy
& Other Special Alloys ANSI B16.5
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Forged Steel Fittings, Socket Welded & Threaded ANSI B16. 11
Copper
Wrought Copper & Copper Alloy Solder-Joint Pressure
Fittings ANSI B16.22
Cast Copper Alloy Solder-Joint Pressure Fittings ANSI B16. 18
CPVC Plastic ("Blazemaster") ASTM F442
FM 1635
Polybutylene (Gray) ASTM 3309
FM 1635
SECTION 4.0 SYSTEM DESIGN
4.1 WATER SUPPLY
Every residential fire sprinkler system shall have at least one
automatic water supply. This water supply shall be supplied from a
reliable public or private water distribution system capable of
supplying the calculated system demand in quantity and pressure.
Where a water distribution system is not available, or the system
cannot provide the calculated system demand, a stored water supply
shall be used. A stored water supply may be an elevated storage
tank, a pump connected to a tank or other storage source, or a
pressure tank.
4.1.1 WATER SUPPLY CONNECTIONS
Connections to a public or private water main shall be either a
dedicated fire sprinkler line or a combination water service line.
4.1.2 WATER TEST
All sprinkler systems shall be designed from water flow test data
calculated to maximum daily use. For systems designed in areas
where the calculated maximum daily use is less than required for
sprinkler operation, special water supply provisions shall be
applied as detailed in Section 4.6.
4. 1.3 COMBINATION WATER SERVICE LINES
Combination water service lines shall be sized to include the
sprinkler demand and domestic demand. The use of combination water
service lines shall be dependent on the available pressure and
quantity of the water supply system and the restrictions of the
water purveyor having jurisdiction. When a combination water
service line cannot be used, a dedicated fire sprinkler line shall
be used.
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4.1.4 DEDICATED FIRE SPRINKLER LINES
Dedicated fire sprinkler lines shall be sized to the sprinkler
demand only, and may serve more than one dwelling unit.
4.1.5 BACKFLOW PREVENTION
All water lines connected to a water distribution system used for
fire sprinkler use shall be protected by a backflow prevention
device approved by the water purveyor having jurisdiction.
EXCEPTION: Circulating systems as detailed in Section 4. 1 .6.
4.1.6 CIRCULATING SYSTEMS
Residential fire sprinkler systems serving twenty (20) heads or
fewer or serving a detached single-family dwelling, may be of a
circulating type. In circulating systems, no dead-end sprinkler
pipe shall exceed 25' in length. Circulating systems shall be
equipped with an approved single checkvalve and shall not be
equipped with a fire department connection.
4.1.7 CONTROL VALVES
Each residential fire sprinkler system shall be provided with
control valves as detailed in this section.
4. 1 .7. 1 Combination Water Service Lines - Each combination water service
line shall be equipped with one (1) control valve which will shut
off both sprinkler and domestic use and one (1) control valve to
shut off the domestic supply only. Backflow prevention devices
shall be secured in in the open position with an approved locking
device.
4. 1 .7.2 Dedicated Fire Sprinkler Lines - Each dedicated fire sprinkler line
shall have one (1) control valve. This control valve shall be
secured in the open position with an approved locking device or be
provided with a tamper-proof switch connected to the system's
alarm. Valves designed to isolate backflow prevention devices
shall be secured in the open position by an approved locking
device.
4.1.8 CONTROL VALVE ACCESSIBILITY
Each control valve assembly shall be accessible to firefighters
without entering a dwelling unit. If an exterior access panel or
door is used, provisions shall be made to insure that the control
valve assembly is protected from freezing. Access panels or doors
to control valve assemblies shall be designated with an approved
sign and secured in a closed and locked position.
EXCEPTION: Control valves serving only a single dwelling unit may
be located at the water service entrance to the unit,
regardless of location.
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4.1.9 TEST VALVE
Each system shall be provided with a test valve to test the
function of the flow switch and alarm(s) . This valve may be
located in any part of the system piping downstream of the flow
switch. If the test valve is not piped outside or to an approved
drain, it shall be provided with a section of 3/4" hose of
sufficient length to allow water flow to be directed outside the
building.
4.1.10 DRAIN VALVE
Each system shall be provided with a drain valve. This drain may
also serve as the test valve, as required in Section 4. 1 .9.
4.1.11 PRESSURE RELIEF
Each residential fire sprinkler system shall be provided with a
pressure relief device on the system side of the backflow
prevention device. This pressure relief valve shall be set to
operate at 175 PSI .
4.1.12 CHEMICAL ADDITIVES
No chemical additives shall be allowed in residential fire
sprinkler systems.
4.1.13 DRY SYSTEMS
Residential fire sprinkler systems shall not be of a dry-pipe type.
4.2 DEMAND CALCULATION
Every residential fire sprinkler system shall provide no less than
18 gallons per minute (GPM) to any single operating sprinkler head
and not less than 13 GPM to the number of design sprinklers when
the design number is two (2) or more. Design area discharges may
be altered as detailed in sprinkler head manufacturer ' s
specifications.
4.2.1 NUMBER OF DESIGN SPRINKLERS
The number of design sprinklers shall include all sprinklers within
a compartment to a maximum of four (4) sprinklers. Calculations
shall be provided to show the highest, most hydraulically remote
discharge demand from the most remote single sprinkler head and
multiple sprinkler heads within a compartment. The definition of
"compartment" for use in determining the number of design sprinkler
heads is a space completely enclosed by walls and a ceiling. A
compartment may have openings to an adjoining compartment or space
if the openings have a minimum lintel depth of 8" from the ceiling.
EXCEPTION: The number of design sprinklers shall be reduced to two
(2) in structures classified as detached single-family
dwellings.
4.2.2 TOTAL WATER DEMAND FOR COMBINATION WATER SERVICE LINES
Total water demand shall be determined by adding the sprinkler
demand and a domestic demand of five (5) GPM for each dwelling unit
served by a combination water service line.
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4.2.3 PRESSURE LOSSES
Total water demand shall include all pressure losses through
valves, piping, backflow prevention devices, water meters, and
similar devices.
4.2.4 HYDRAULIC CALCULATIONS
The piping distribution system shall be hydraulically calculated
from the most distant design area. Minimum pipe diameter shall be
3/4" for copper, CPVC, and Polybutylene; and 1" for steel .
4.2.5 LAWN IRRIGATION SYSTEMS
Systems using combination water service lines which supply water to
automatic lawn irrigation systems or other special water use
devices shall be provided with a switching mechanism which will
automatically shut off the flow of water to the other systems or
devices if the fire sprinkler system is activated.
4.3 SPRINKLER HEAD LOCATION
All areas of residential buildings shall be provided with sprinkler
heads. The location of sprinkler heads shall be in accordance with
each manufacturer's specifications. Areas where sprinkler heads
may be omitted are:
A. Closets within dwelling units where the smallest dimension is
no more than three (3' ) feet and the total area does not exceed
twenty-four (24) square feet.
EXCEPTION: Sprinklers shall be provided in all closets in
group homes for children, mentally and emotionally
disabled people, and other uses where residents may
have a history of fire-starting behavior.
B. Attics, crawl spaces, and similar concealed spaces which are
not, and cannot be, used for storage.
C. Carports and other open structures designed to protect vehicles
from the weather, which are separated from dwelling units or
common areas with a conforming occupancy separation.
D. Closed vehicle garages which have no openings to dwelling units
or common areas and are separated from those areas with a
conforming occupancy separation.
E. Unenclosed exterior porches, patios, balconies, and similar
external areas.
F. Unenclosed exterior stairs, passageways, and similar areas.
4.3.1 HAZARD AREAS
All hazard areas in which high heat output is produced during
normal operations shall have listed commercial sprinkler heads with
a fusing temperature of 1650 to 2120. Single sprinklers installed
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in these areas shall not be considered as a design sprinkler in
demand calculations.
4.3.2 PENDENT HEADS
Pendent sprinkler heads shall be positioned in accordance with
manufacturer's specifications.
4.3.3 SIDEWALL HEADS
Sidewall sprinkler heads shall be positioned in accordance with
manufacturer's specifications.
4.3.4 OBSTRUCTIONS
Sprinkler heads shall be positioned so that response time and
discharge pattern is not obstructed by light fixtures, beams,
decorative fixtures, or similar objects. Manufacturer's
specifications shall be consulted for specific design limitations.
Additional sprinkler heads may be added to overcome obstruction
problems.
4.3.5 HEAT-PRODUCING DEVICES
Sprinkler heads shall be positioned so that they are not adversely
affected by heating, ventilation, and air conditioning equipment.
Manufacturer's specifications shall be consulted for specific
design limitations.
4.3.6 ESCUTCHEONS
Dropped or extended escutcheons shall not be used.
4.3.7 CEILING FANS
When ceiling fans are used, sprinkler heads shall be located so
that fan blades do not obstruct spray pattern or delay response
time. Rooms exceeding nine (9') feet by nine (9') feet in size
with a ceiling fan shall contain a minimum of two (2) sprinkler
heads.
4.4 FIRE DEPARTMENT CONNECTION
All residential fire sprinkler systems with over twenty (20) heads
shall be equipped with an approved 1-1/2" fire department
connection. This connection shall be located on the exterior of
the building in a location approved by Poudre Fire Authority. Each
fire department connection shall have male National Standard
threads, protective cap, and checkvalve to keep system water on
inside of heated area.
EXCEPTION: Detached single-family dwellings.
4.5 ALARMS
All residential fire sprinkler systems shall be equipped with a
flow switch and an approved horn or bell .
4.5.1 ALARM LOCATION
On buildings with no interior common areas, the alarm bell or horn
shall be mounted on the exterior of the building facing the street
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from which building is addressed. Unless specifically altered by
Poudre Fire Authority, the alarm bell or horn shall be positioned
directly over the fire department connection. In buildings with
interior common areas such as corridors, foyers, offices,
recreation areas or other similar areas, an additional bell (s) or
horn(s) shall be provided in these areas. Exterior alarm devices
shall be positioned high enough to be seen above landscaping.
4.5.2 ALARM POWER SOURCE
All flow switches and alarm horns or bells shall be powered from a
common building power circuit independent from individual dwelling
units.
4.5.3 REMOTE MONITORING
Residential fire sprinkler systems with over one hundred (100)
sprinkler heads shall be monitored at an approved location which
has 24-hour supervision in accordance with Section 10.309 of this
Code.
4.6 SPECIAL PROVISIONS FOR LIMITED WATER SUPPLIES
Where water distribution systems are inadequate to supply the
calculated system demand in quantity, pressure, or both, provisions
of this section shall apply.
4.6.1 PUMPS
Where a water distribution system can supply the required quantity
but not the required pressure for the calculated system demand, a
booster pump shall be installed to make up the pressure difference.
Booster pumps shall be powered by a separate power circuit
dedicated to the booster pump. A stored water system designed and
installed in accordance with Section 4.6.2 below may be used where
a water distribution system is incapable of providing the required
quantity and/or pressure.
4.6.2 STORED WATER SYSTEM
A stored water system shall be a storage tank equipped with a
booster pump, a pressure tank, or elevated tank capable of
providing the calculated demand pressure and quantity.
A. The stored water system shall provide a minimum of ten (10)
minutes of water supply available at all times. This tank
shall be equipped with a low-water supervision alarm designed
to notify the occupants when the tank level falls below 110
percent of the calculated storage amount. The tank shall have
an automatic refilling system that shall operate when activated
by the low-water supervision alarm.
B. A stored water system using a booster pump shall also meet the
requirements of Section 4.6. 1 .
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4.7 INSULATION
All piping, sprinkler heads, control valve assemblies, and other
system components shall be protected from freezing. The method of
insulation shall be shown on submitted plans and approved by Poudre
Fire Authority.
SECTION 5.0 INSTALLATION
5.1 GENERAL
Residential fire sprinkler systems are intended as life-safety
devices designed to control fires in dwelling areas where fire
starts are most likely to occur. Because residential fire
sprinkler systems do not provide the 100% coverage of commercial
fire sprinkler systems, the quality control specifications of this
section shall be strictly adhered to.
5.1. 1 CERTIFICATION
Residential fire sprinkler systems shall only be installed by
contractors holding a valid residential fire sprinkler installation
certificate. Contractors eligible to receive installation
certificates are:
A. Fire sprinkler contractors licensed in the City.
B. Master plumbers licensed in the City.
5.1.2 ON-SITE INSTALLER
At least one (1) installer on each job site shall hold a valid
residential fire sprinkler installer's certificate.
5.1.3 PLAN REVIEW
All residential fire sprinkler systems shall be approved through
the Poudre Fire Authority plan review procedures before
installation. At least one (1) set of approved plans shall be
maintained by the installer at each installation site.
5.1.4 BUILDING PERMIT
All residential fire sprinkler systems shall be installed under a
building permit separate from the general permit issued for the
total building.
5.1.5 TESTS
All tests required by this design standard shall be witnessed by a
Poudre Fire Authority representative. The installer shall request
these tests at least 24 hours in advance. Poudre Fire Authority
may allow tests to be witnessed by on-site quality control
inspectors or inspectors of other public agencies, at the
discretion of the Chief.
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5. 1.6 SYSTEM APPROVAL
The installed residential fire sprinkler system shall be approved
by Poudre Fire Authority before a certificate of occupancy is
issued.
5.2 UNDERGROUND WATER LINE
5.2.1 DEFINITION
All piping and related installation from connection to the public
water main to the connection of the control valving.
5.2.2 WATER LINE CONNECTION
Water line connection shall be of the calculated size as shown on
approved plans. Water meter, if used, shall be the same as shown
on approved plans and all piping shall be well -supported, as
required by the water purveyor having jurisdiction.
5.2.3 LOCATION
Locations of dedicate fire service or combination domestic-fire
service riser stub shall be verified as correct from approved
plans.
5.2.4 FLUSH TEST
Underground water line shall be flushed clear before installation
of control valving.
5.3 CONTROL VALVE ASSEMBLY
5.3.1 DEFINITION
All piping and related equipment from the termination of the
underground piping to the beginning of the sprinkler piping.
5.3.2 CONTROL VALVE
The main control valve shall be of a full flow-type which can be
secured with a padlock.
5.3.3 BACKFLOW PREVENTION DEVICE
The backflow prevention device shall be installed as approved by
the water purveyor having jurisdiction.
5.3.4 FLOW SWITCH
The flow switch shall be installed on the control valve assembly.
5.3.5 GAUGE
An approved gauge shall be provided on the control valve assembly.
5.3.6 TEST-DRAIN
A test or combination test-drain connection shall be provided.
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5.3.7 PRESSURE RELIEF VALVE
A maximum 175 PSI pressure relief valve shall be provided, but not
attached until final inspection. A plugged attached point shall be
provided on the control valve assembly. The pressure relief valve
shall be located where adequate drainage can be attained.
5.3.8 FIRE DEPARTMENT CONNECTION
An approved 1-112" fire department connection shall be provided in
the location shown on approved plans.
5.3.9 CONTROL VALVE SUPPORT
The control valve assembly shall be adequately supported to prevent
damage due to sagging or impact.
5.4 SPRINKLER PIPING
5.4.1 DEFINITION
All system piping from the termination of the control valve
assembly including riser, feed mains, branch lines, and head drops.
The rough-in piping stage shall be completed before sheetrock or
other enclosures are in place.
5.4.2 PIPING
All piping shall be installed according to approved plans. Pipe
sizes shall be correct and well -supported. All pipe hangers and
anchors shall be in accordance with NFPA Standard 13 for metallic
piping and manufacturer's specifications for plastic piping.
5.4.3 SPRINKLER HEADS
All head positions shall be correct as shown on approved plans.
On-site changes shall be allowed, provided that they do not exceed
spacing criteria or hydraulic calculations.
5.4.4 OBSTRUCTION AND HEAD SOURCES
All sprinkler head positions shall take into consideration design
criteria for heat sources and obstructions. These positions will
be verified on-site during inspections.
5.4.5 PIPE JOINTS
All pipe joints and connections shall be proper and installed to
manufacturer's specifications when plastic piping is used. Pipe
joints using threads must use Teflon tape and Teflon liquid.
5.4.6 HEAD DROPS
All head drops shall be secured against nozzle reaction in
accordance with manufacturer's specifications and each head drop
shall have a 4" long, 112" in diameter pipe extension with cap,
installed. Each head drop shall be positioned so that when the
head is installed, it protrudes below the ceiling exactly to the
head manufacturer's specifications. Sprinkler heads shall not be
installed until ceiling or wall (if sidewall heads are used)
finishes are complete, unless approved sprinkler head protectors
are used.
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EXCEPTION: Sprinkler heads may be installed during the piping
installation and 4" pipe extensions omitted when
approved head protectors are used.
5.4.7 HYDROSTATIC TEST
A 200 PSI hydrostatic test for two (2) hours is required, and shall
be completed before installation of sheetrock.
EXCEPTION: Systems without fire department connections shall be
hydrostatically tested to 50 PSI above maximum static
pressure.
5.4.8 FLOW-TEST
A flow-test shall be witnessed by Poudre Fire Authority at
completion of rough-in piping. This test requires that a 1/2"
quarter-turn, flow-through valve be installed in place of the 4"
pipe extension on the two most remote head drops as shown on the
approved plans. An open orifice head shall be attached to this
valving to simulate an open head. A calibrated gauge shall be
attached at the next head drop closest to test valves to read
residual pressure during flow test. Poudre Fire Authority will
provide all other test equipment at time of test. The flow-test
may be waived for multiple installations of identical design at the
discretion of the Chief.
5.5 FINISH INSTALLATION
5.5.1 DEFINITION
The finish installation completes the residential fire sprinkler
installation, including installation of heads.
5.5.2 CARE OF HEADS
All sprinkler heads shall be installed after wall and/or ceiling
finishes are complete. Each head shall be attached with the proper
tightness and the head shall protrude from the ceiling surface, the
exact length specified by the manufacturer. Extreme care must be
taken when handling heads. Heads shall only be moved and stored in
their original plastic packaging. Only manufacturer-approved
installation tools may be used. All escutcheon plates must also be
installed before final inspection.
5.5.3 FINAL HYDROSTATIC TEST
A hydrostatic test of 150 PSI, for one (1) hour, shall be witnessed
by Poudre Fire Authority after heads are in place.
5.5.4 PRESSURE RELIEF VALVE INSTALLATION
After final hydrostatic test, the 175 PSI pressure relief valve
shall be installed.
5.5.5 ALARM
The alarm bell/light or horn/light assembly shall be attached and
tested. Alarm bell and switch shall be wired to common building
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power. If alarm is also monitored, off-site alarm function shall
operate.
5.5.6 FINAL FLOW TEST
Poudre Fire Authority shall witness a flow test from the test
connection at the control valve assembly.
5.5.7 VALVE SECURITY
All valves shall be secured in the open position or enclosed in an
approved, locked cabinet. The location of the control valve shall
be designated by an approved sign.
5.5.8 INSULATION
All pipe insulation shall be in place. Even though this may be
done by another contractor, it is the responsibility of the
sprinkler installer to see that pipes are protected against
freezing.
5.5.9 SPARE HEADS
A supply of two spare heads of each type used, and installation
tool shall be provided in each control valve assembly enclosure.
SECTION 6.0 MAINTENANCE
6.1 GENERAL
All residential fire sprinkler systems shall be maintained in
operable condition at all times.
6.2 OCCUPANT RESPONSIBILITY FOR MAINTENANCE
It shall be the responsibility of occupants, whether owner, tenant,
or other ownership category, to maintain all portions of the
sprinkler system installed within the dwelling unit in an operable
condition at all times. This shall include keeping heads free of
paint and excessive accumulations of dirt, keeping heads free of
all obstructions, maintaining all valves in the open position, and
maintaining all alarm devices in operation.
6.3 COMMON AREAS
It shall be the responsibility of the building owner, homeowners'
association, or other party responsible for maintenance of common
and external areas to maintain in an operable condition all
portions of sprinkler systems in these areas at all times. This
shall include all items listed in Section 6.2, above.
6.4 INSPECTIONS
All sprinkler systems in multi -family buildings shall be included
in Poudre Fire Authority's fire sprinkler system inspection
program. In addition to inspection of sprinkler system components
in the building's common area, the building management shall
provide the inspector access to all unoccupied dwelling units for
inspection purposes. If the inspector has cause to believe that
the sprinkler systems in occupied dwelling units are impaired,
inactive, or damaged, he or she shall request entry into such
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units. If entry is denied, the inspector shall obtain an
inspection warrant, as detailed in Section 2.107 of this Code.
6.5 INSPECTION UPON CHANGE OF OWNERSHIP OR OCCUPANT
Upon any change in ownership or occupant, it shall be the
responsibility of the owner of the dwelling, or his or her
authorized representative, to obtain an inspection of the sprinkler
system within that dwelling. The purpose of this inspection shall
be to verify that the system is in service and components are not
damaged or impaired. Any improvements or repairs required as a
result of this inspection shall be completed before the Fire
Authority will issue a certificate of successful inspection. The
Chief may assess an inspection fee based on the costs incurred to
provide the inspection. If Poudre Fire Authority is not notified
of a change in ownership or occupant, the Authority may conduct an
inspection within a reasonable time after discovery of the fact
that the change in ownership or occupant occurred.
6.6 DOCUMENTATION
Development and construction documents of all dwelling units and
buildings equipped with required residential fire sprinkler
systems, shall have wording included to show the requirement for
the sprinkler system and maintenance provisions.
6.7 IMPAIRMENT
If a sprinkler system is impaired or removed from service for any
reason, Poudre Fire Authority shall be immediately notified of the
same by the property owner and/or occupant.
6.8 CONSTRUCTION CHANGES
All construction within a building or dwelling unit equipped with a
required residential fire sprinkler system shall take into
consideration the impact on the sprinkler system. A certified
residential fire sprinkler installer shall be contacted to make
necessary repairs, additions, and/or modifications.
6.9 REPAIRS, ADDITIONS, AND MODIFICATIONS
All repairs, additions, and modifications to residential fire
sprinkler systems shall be done by a certified residential
sprinkler installer. Plan review and permit procedures, as
detailed in Section 5. 1, shall apply to such work.
Section 2. That Section 38-2 is amended to set out the following
additional amendments to the provisions of the Uniform Building Code, in
numerical sequence with previous amendments:
(1) Chapter 13 is added as follows:
UNIFORM BUILDING CODE, 1985 EDITION
CHAPTER 13
Alternative Design Criteria for Residential Buildings Equipped with
Approved Residential -Type Fire Sprinkler Systems.
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GENERAL
Section 1301 . (a) Purpose. The purpose of this chapter is to provide
alternate code equivalent fire protection for residential occupancies
by the use of fast response fire sprinkler technology.
(b) Scope. When Approved Residential -Type Fire Sprinklers are
installed in accordance with Poudre Fire Authority design criteria in
residential buildings, not otherwise required to be protected by an
approved automatic system, the design and construction modifications
of this chapter may be applied. Occupancies eligible for review under
this chapter are those occupancies defined as R-1 or R-3 and their
accessory M occupancies. Provisions of this chapter shall not be
applicable to residential buildings four or more stories or 55 feet in
height
(c) Definitions. For the purposes of this chapter, certain terms are
defined as follows:
ADJACENT DWELLING UNIT is a dwelling unit which adjoins another
dwelling unit at some point or along a common line.
APPROVED RESIDENTIAL-TYPE FIRE SPRINKLER SYSTEM - is an automatic fire
protection system capable of applying water to a fire in accordance
with the performance criteria of Poudre Fire Authority for design,
installation and maintenance.
FIRE RESISTANCE OF EXTERIOR WALLS
Section 1302. Exterior walls on buildings described in section 1301
(b) , which are required to be fire-rated due to proximity to property
line (Table 5-A) , may be non-rated when all adjacent dwelling units
and adjacent buildings are protected by an approved residential -type
fire sprinkler system.
EXCEPTION: This provision shall not apply in areas where wildlife
conditions may develop as determined by the Fire Chief.
ALLOWABLE AREA INCREASES
AND
MAXIMUM HEIGHT OF BUILDINGS
AND
FIRE-RESISTIVE CONSTRUCTION SUBSTITUTION
Section 1303. Approved residential -type fire sprinklers, shall be
considered for the purpose of increasing floor areas, Section 506 (c) ,
increasing height, Section 507, and substitution of fire-resistive
construction, Section 508. The one-story increase of Section 507 may
be compounded with either increases for allowable area or
fire-resistive construction.
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SPECIAL PROVISIONS
Section 1304. (a) Group R, Division 1 occupancies more than two (2)
stories in height or having more than 3,000 sq. ft. of floor area
above the first story, may be non-rated up to the limitations of
Section 1303, when an approved residential -type fire sprinkler system
is installed.
(b) Storage or laundry rooms that are within Group R, Division 1
occupancies that are used in common by tenants, shall be separated
from the rest of the building. This separation may be non-rated when
an approved residential -type fire sprinkler system is installed.
(c) An approved fire alarm system as specified in the Uniform Fire
Code and Section 1202 (b) , will not be required when the building is
equipped with an approved residential -type fire sprinkler system and
each dwelling unit does not exit through an interior corridor. This
exception applies only for applicable buildings as defined in 1301 (b)
of this chapter.
SPECIAL HAZARDS
Section 1305. Boiler or central heating plant rooms in Group R,
Division 1 occupancies shall be separated from the rest of the
building. This separation need not be one-hour fire-resistive
construction provided the BTU output of the largest single unit does
not exceed 400,000 BTU's and the building is equipped with an approved
residential -type fire sprinkler system. EXCEPTION: A separation
shall not be required for such rooms with equipment servicing only one
dwelling unit.
MEZZANINES
Section 1306. The aggregate area of a mezzanine may be one-half the
area of the room in which it is located, without being considered an
additional story and sides adjacent to the room in which it is located
may be closed provided the building is equipped with an approved
residential -type fire sprinkler system and exits from the mezzanine
conform to the requirements of Chapter 33.
ATTIC DRAFT STOPS
Section 1307. Draft stops must be provided in all attics, mansards,
overhangs, and false fronts. When an approved residential -type fire
sprinkler system is installed the area between draft stops may be
3,000 sq. ft.
EXITS
Section 1308. Every building or portion thereof shall be provided with
exits as required by Chapter 33.
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EXCEPTIONS: 1 . When an approved residential -type fire sprinkler system
is installed in buildings eligible for review under the provisions of
this chapter, the second story may be provided with one exit when the
occupant load does not exceed 15 or the number of dwelling units does
not exceed 5, whichever is least restrictive.
2. When an approved residential -type fire sprinkler system is
installed in buildings eligible for review under the provisions of
this chapter, occupants on the third story may have access to one (1)
conforming exit when all exits are exterior and continue directly to
grade level and when a single exit serves no more than two (2)
dwelling units on the third story.
EXIT CORRIDOR RATING
Section 1309. In buildings where an approved residential -type fire
sprinkler system is installed under the provisions of this chapter,
walls, ceilings, and floors of corridors in Group R, Division 1
occupancies shall be required to be one-hour fire-resistive
construction when serving an occupant load of 30 or more.
EXIT CORRIDOR DOORS
Section 1310. In buildings where an approved residential -type fire
sprinkler system is installed under the provisions of this chapter,
door openings in corridors serving an occupant load of more than 10,
but less than 30, will be required to have a non-combustible or a
solid core, 1 3/8-inch thick door. Doors must be self-closing and
equipped with a smoke gasket to provide a seal where the door meets
the top and sides.
FIRE CONTAINMENT AREAS
Section 1311. In buildings where an approved residential -type fire
sprinkler system is installed under the provisions of this chapter,
the requirement for Fire Containment Areas as specified in section
3801 amended, shall not apply.
Section 3. Severability. The City Council hereby declares that
should any section, paragraph, sentence, word or other portion of this
ordinance be declared invalid for any reason, such invalidity shall not
affect any other portion of this ordinance, and the City Council hereby
declares that it would have passed all other portions of this ordinance,
independent of the elimination herefrom of any such portion which may be
declared invalid.
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Introduced, considered favorably on first reading and ordered
published in summary form this 4th day of December, A.D. 1986, and to be
presented for final passage on the 16th day of December, A.D. 1986.
Mayor
ATTEST:
City Clerk
Passed and adopted on final reading this 16th day of December, A.D.
1986.
Mayor
ATTEST:
City Clerk
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